654746649 has 8 divisors (see below), whose sum is σ = 873439392. Its totient is φ = 436275840.

The previous prime is 654746641. The next prime is 654746657. The reversal of 654746649 is 946647456.

It is an interprime number because it is at equal distance from previous prime (654746641) and next prime (654746657).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 654746649 - 2³ = 654746641 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (654746641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48472 + ... + 60489.

It is an arithmetic number, because the mean of its divisors is an integer number (109179924).

Almost surely, 2^654746649 is an apocalyptic number.

It is an amenable number.

654746649 is a deficient number, since it is larger than the sum of its proper divisors (218692743).

654746649 is a wasteful number, since it uses less digits than its factorization.

654746649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110967.

The product of its digits is 4354560, while the sum is 51.

The square root of 654746649 is about 25588.0176840645. The cubic root of 654746649 is about 868.3425744165.

The spelling of 654746649 in words is "six hundred fifty-four million, seven hundred forty-six thousand, six hundred forty-nine".